the orange sign in rpm meter indicates that there might be some issue with car so u need to exercise caution...
in short car is telling u in its language to goto car dealership or an expert person who can understand car language by attaching a scanner/diagnosis tool through designated port under the steering wheel...
the problem will be narrated in form of a code with short description and expert will advice u the solution accordingly,
u can share the diagnosis result here on the forum aswell...
its just ike getting ur BP checked or doing blood tests